13223140444 has 6 divisors (see below), whose sum is σ = 23140495784. Its totient is φ = 6611570220.

The previous prime is 13223140417. The next prime is 13223140471. The reversal of 13223140444 is 44404132231.

It is an interprime number because it is at equal distance from previous prime (13223140417) and next prime (13223140471).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1652892552 + ... + 1652892559.

Almost surely, 2^13223140444 is an apocalyptic number.

It is an amenable number.

13223140444 is a deficient number, since it is larger than the sum of its proper divisors (9917355340).

13223140444 is a wasteful number, since it uses less digits than its factorization.

13223140444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305785115 (or 3305785113 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 13223140444 its reverse (44404132231), we get a palindrome (57627272675).

The spelling of 13223140444 in words is "thirteen billion, two hundred twenty-three million, one hundred forty thousand, four hundred forty-four".